Welcome to HPfirst of all
I am a little confused why an acupressure course would be asking you a reflexology question, it all depends on how one actually perceives that reflexology aids healing.
By "dynamic reflex" I presume they are implying that it is energetic and changing.
However I would like to know if you injure a certain part of your foot, will the reflex corresponding to the body on that part of the foot be affected? For example say you injured the pads of your second & third toes would this result in sinus problems? Basically will injury to the foot cause tenderness to the reflexes on the foot and therefore possibly cause problems in other areas of the body to arise?
Other Reflexologists may have different understandings but I interpret reflexology as a remote energy healing tool. When I carry out a session I am intuitively connecting with the recipient by identifying their body via corresponding parts of their foot. So if an area feels tender or unbalanced it may be highlighting an area which requires healing.
If the recipient has injured an area of their foot then it will simply be a physical injury and, as you say, may need to be avoided or cross refererred.
It is amazing how what we think can affect how our body feels, so if a person is aware of reflexology points on their foot then they may well set up a problem in the corresponding part of their body.
Hope this helps.